We have decided to go for MPLS VPN with full mesh network. Managed Global VPN with with COS3 100%. We totally have 04 branch offices and each branch office will have 03 to 04 projects.
Our Network and requirement:
1. 04 branches and each branch have projects on different locations hence totally 14 locations are covered with MPLS VPN with mesh network.
2. We are planning for inter branches communication setup to cut the cost on the telephones calls , but I do not know anything about the telephony, all I have heard about asterisk can be used either open source or the business versions.
Please suggest me for inter-branches communications which is connected with the MPLS VPN mesh network will this be a the recommended solution and most importantly what is the name for this solution is it “ Asterisk call manager” or “Asterisk ip pbx” , I am confused please tell me.
Below points are my doubts please help by clarifying the same:
1.for inter-office communications with IP telephones or any other in the MPLS VPN mesh network which application to be used please name it and also the application has many modules which module to be used ,so that when having discussion with the service provider will have an idea
2.I prefer linux based, is open source sufficient or should we go for business or commercial product.
3.Is it better to go for commercial version of asterisk so few codecs are enabled where the bandwidth utilization will be less. on open source versions codecs will not be enabled hence bandwidth consumption will be high( i heard about this but not sure how much correct is this), please name the technology name for the solution iam looking for example is it IP-PBX or Call manager iam not sure
4.Also iam not very much particular on Asterisk only in addition if any other solution can be better than asterisk then request to recommended that also.